Running write_imf_from_omni now returns the omni data also

DOCUMENTATION.markdown

@@ -56,6 +56,11 @@ period.
   see `swmfpy.io.write_imf_input()` and `swmfpy.web.get_omni_data()`
   
 
+**Returns**:
+
+- `(dict)` - Dictionary of omni data.
+  
+
 **Examples**:
 
   Using this function is simple:

swmfpy/__init__.py

@@ -41,6 +41,9 @@ def write_imf_from_omni(time_from, time_to, filename='IMF.dat', **kwargs):
     **kwargs:
         see #swmfpy.io.write_imf_input() and #swmfpy.web.get_omni_data()
 
+    Returns:
+        (dict): Dictionary of omni data.
+
     Examples:
         Using this function is simple:
         ```python
@@ -63,3 +66,4 @@ def write_imf_from_omni(time_from, time_to, filename='IMF.dat', **kwargs):
                    'bx', 'by_gse', 'bz_gse', 'vx_gse', 'vy_gse', 'vz_gse',
                    'density', 'temperature']
     io.write_imf_input(omni_data, filename, column_keys=column_keys, **kwargs)
+    return omni_data